Sustainable Power & Energy System Laboratory

Sustainable Power and Energy System Lab (SPES Lab) is situated at the ground floor of east block in Mechanical & Industrial Engineering Department, IIT Roorkee. The aim of this laboratory is to train undergraduate, post graduate, and research scholar students in the area of sustainable power with the objective to research and study in this field.

Currently the lab is engaged in the two different projects: one is synthesis, characterization and heat transfer applications of different kinds of nanofluids the second one is solar assisted liquid desiccant single storage tank.

We work for the betterment of society by providing alternate sustainable technology for the efficient & balanced energy transfer.

Prof. Sudhakar Subudhi

Professor

sudhakar.subudhi@me.iitr.ac.in

East Block, Room No:129

01332-284763

Thermal Property Analyser

It is used to measure following properties: 1. Thermal Conductivity of fluids. 2. Specific Heat capacity of fluids

CONSTANT TEMPERATURE HEATING COOLING BATH

"For achieving the steady state condition in the test section, it is important to maintain constant inlet temperature to the test section during the experiment. As the fluid heated in the test section, the same heat should be removed using cooling fluid. This is achieved by heat exchanger and constant temperature bath. In the present work, a Koehler constant temperature bath is used to maintain the constant temperature. It is designed to maintain desired temperature with high accuracy. The unit is provided with a circulating pump (internal & external) to ensure uniform temperature".

Fourier T Fourier-Transform Infrared Spectrometer

"Fourier Transform-Infrared Spectroscopy (FTIR) is an analytical technique used to identify organic (and in some cases inorganic) materials. This technique measures the absorption of infrared radiation by the sample material versus wavelength. The infrared absorption bands identify molecular components and structures".

Thermal Property Analyser Specification

"Thermal property analyser is a hand held device to measure thermal properties of any media. It has hand held controller and a needle sensor that can be inserted into the media wish to measure the thermal properties".

Probe Sonicator

"The Probe Sonicator BMS 750T is using to break the agglomeration of nanoparticles into the base fluid with the help of ultrasonic vibration produce by the probe of the Sonicator".

Current

Alumni

Aditya Kumar

Research Problem: His work is on the Natural convection in magnetic nanofluids. He is synthesizing the magnetic nanofluids at different concentration. The effect on the important thermal properties of nanofluids like thermal conductivity and viscosity of different parameters is investigated by him.

2015

Geleta Fekadu

Research Problem: His project work aims to investigate internally-cooled liquid desiccant dehumidification system using the liquid desiccant for a single stratified storage tank experimentally. The application of the same is in air condition industry to replace the existing conventional air conditio

2015

Shashikant Das

Research Problem: He is doing PhD in the area of Thermal comfort of Human body. He is doing experiment on different subject (humans) at different climatic situation to find the different comfort conditions for humans.

2017

Deepak Kumar

Research Problem: He is the part-time PhD Student working as an Assistant Professor in NIT Uttarakhand. His research area is the Natural convection in nanofluids.

2017

Kalpana Singh

Research Problem: She completed her course work and doing literature review in solar liquid desiccants cooling.

2018

S.No.	Student Name	Fellowship	University	Duration
1	Ujjawal Nandi	SPARK	IIT Chennai	June-July 2019
2	Kriti Manocha	DST Summer Internship	MNIT Jaipur	June-July 2019
3	S. Biswas	DST Summer Internship	NIT Durgapur	June-July 2019
4	Aditya Das	Self-Financing	VIT Vellore	June-July 2019

Solar Assisted Liquid Desiccant Cooling System Using Single Storage Tank.

Sponsor: DST
Project Outlay: ₹35.4 Lakhs
Prof. Sudhakar Subudhi

Abstract

There are three main objectives of the proposal based on the solar liquid desiccant cooling system. First is to use a single storage tank for dil. and conc. CaCl2 solution for liquid desiccant cooling system and to utilize the solar energy for maintaining a thermal stratification in the storage tank. The second objective is to utilize the stored heat in the storage tank to regenerate the dehumidifier.

The last objective is to characterize the transient heat and mass transfer processes and fluid dynamics in the storage tank. The temperature, conductivity and mass flow measurement will be acquired using different instruments, such as data acquisition system, flow meter etc.

Flow Visualization And Temperature Measurements For Turbulent Natural Convection Over A Heated Bottom Surface Of An Enclosure.

Sponsor: NIT Calicut
Project Outlay: ₹5 Lakhs
Prof. Sudhakar Subudhi

Abstract

The present project deals with the experimental study of free convection on horizontal surface. The experimental setup consists of a tank containing water. The bottom surface was heated and top surface of the water was left open to the ambient. An alternate representation of the heat transfer is introduced, which brings out the fact that the actual heat transfer rates do not vary much over a wide range of Ra and conditions.

Natural Convection In Nano-Fluids.

Sponsor: IIT Roorkee
Project Outlay: ₹10 Lakhs
Prof. Sudhakar Subudhi

Abstract

The experimental investigation is conducted on the nanofluids in the natural convection. A square enclosure, heated from the bottom and cooled from the top, identical to Rayleigh-Bénard cavity is filled by the water based Al2O3 nanofluids.

The particle concentrations of 0.01 and 0.1 vol.%, and particle diameters of 20 and 40 nm are selected to investigate their effects on the heat transfer. Except the concentration and size of nanoparticles, the aspect ratio (height/width) and heat flux at the bottom plate are other parameters, which are examined in the present study.

Experimental Investigation Of Convective Heat Transfer Characteristics And Pressure Drop In Forced Convection Using Nano-Fluids.

Sponsor: DST
Project Outlay: ₹23.6 Lakhs
Prof. Sudhakar Subudhi

Abstract

The present research investigates the heat transfer and pressure drop characteristics of Al2O3 and TiO2/water nanofluids. Following aspects of nanofluids are covered in this study: thermal conductivity, viscosity, stability, forced convection heat transfer and pressure drop in nanofluids. In this study, spiral tape inserts are used to further enhance the heat transfer.